Very Low Level 210 Po Determination by Electrochemical Displacement Method

Bioaccumulation of 210 Po and 210 Pb in Arctic seabirds

INTRODUCTION When considering the potential radiological impacts of anthropogenic radionuclides in the environment, it is important to understand the doses incurred by biota by natural activity concentrations of naturally occurring radionuclides. Naturally occurring Po (half-life138 days) and Pb (half-life 22.3 years) are members of the U decay chain. In the marine environment, Po and Pb are pr...

Assessment of 210 Po in Italian diet

Rapid method for determination of Po isotopes in biological matter

A short review of the existing analytical procedures for determination of Po-210, showing their advantages and disadvantages, is presented. The criteria for selecting the proper method, according to the scope and type of matrix in study are summarised. The rapid method which is described here consists of total digestion, auto deposition and measurement by means of alpha spectrometry. The classi...

Low-level Selenium Determination

Introduction Selenium is an essential element to human health at low levels (2080 μg/L), but becomes toxic at elevated levels. Selenium exists in different forms that determine its toxicity and bioavailability. Current research is now focusing on the determination of individual selenium species or seleniumcontaining compounds. This can be done using ICP-MS as a selenium-specific detector for a ...

Po and 210 Pb in the Terrestrial Environment Bertil

The natural sources of 210Po and 210Pb in the terrestrial environment are from atmospheric deposition, soil and ground water. The uptake of radionuclides from soil to plant given as the soil transfer factor, varies widely between various types of crops with an average about 0.056±0.003. The atmospheric deposition of 210Pb and 210Po also affect the activity concentrations in leafy plants with a ...